18961131

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1061}}^1$

素因数の和:1131

約数の個数: 32

約数和(自身を含む): 30993408

約数和(自身を除く): 12032277

約数列:

[1, 3, 7, 21, 23, 37, 69, 111, 161, 259, 483, 777, 851, 1061, 2553, 3183, 5957, 7427, 17871, 22281, 24403, 39257, 73209, 117771, 170821, 274799, 512463, 824397, 902911, 2708733, 6320377, 18961131]

約数ペア:

[(1, 18961131), (3, 6320377), (7, 2708733), (21, 902911), (23, 824397), (37, 512463), (69, 274799), (111, 170821), (161, 117771), (259, 73209), (483, 39257), (777, 24403), (851, 22281), (1061, 17871), (2553, 7427), (3183, 5957)]